CN211251308U - Accurate blank device of plastic uptake machine - Google Patents

Abstract

The utility model belongs to the technical field of the plastic products processing and specifically relates to a precise blank device of plastic uptake machine is related to, including the support frame, follow supreme guide rail, the flitch of pushing down, the last pressure flitch of pressing, the pressure material cylinder of being fixed in on the support frame, the piston rod bottom of pressing the material cylinder is fixed in to the last pressure flitch, and the guide rail is perpendicular with the piston rod of pressing the material cylinder, slides on the guide rail and is equipped with the slider, is fixed with the blade on the slider, and the side of pressing the flitch under the blade is hugged closely, on press and be equipped with first support on the flitch, be equipped with the first roller and the second roller. The utility model discloses the first roller, the second roller that the pressure flitch removed on utilizing to follow are downwards flattened the plastics panel of epirelief, upwards flatten recessed plastics panel respectively, have reduced crooked plastics panel to the influence of cutting the precision, have improved the precision that cuts plastics panel on the boundary line of two adjacent products.

Description

Accurate blank device of plastic uptake machine

Technical Field

The utility model belongs to the technical field of the plastic products processing and specifically relates to a precise blank device of plastic uptake machine is related to.

Background

The plastic sucking machine (also called thermoplastic forming machine) is a machine for sucking the thermoplastic coiled material (PVC, PE, PP, PET, HIPS, etc.) plasticized by heating into various shaped products such as high-grade packing decorative boxes, frames, etc. Principle of plastic sucking forming machine: the forming process is mainly characterized in that the vacuum suction force generated by a vacuum pump is utilized to carry out vacuum forming on the thermoplastic plastic sheet after being heated and softened into vacuum covers, vacuum trays, bubble shells and the like with various shapes through a mould. The common products on the market at present are: daily article blister packaging, small hardware blister packaging, automobile article blister packaging, electronic product blister packaging, food blister packaging, cosmetic blister packaging, computer peripheral equipment blister packaging, toy blister packaging, sports article blister packaging, stationery article blister packaging and the like.

In the material cutting device of the existing plastic sucking machine, a material pressing plate on the material pressing device is fixed, and a cutter is liftable, so that the cutter needs to do two actions of lifting and cutting, and the cutting work efficiency is not high. For improving the work efficiency that cuts, the utility model patent of the publication number of authorizing is CN202702603U discloses a blank device of plastic uptake machine, and the theory of operation is: the plastic board passes through from the blank device, and when carrying out the blank, the material cylinder moves down of pressing makes the pressure flitch push down the plastic slab, and the cylinder drives slider formula cutter saddle and moves along the crossbeam to make the cutter cut plastic board, the shaping material that cuts off falls into the workbin.

The plastic suction mould and the material cutting device are at a certain distance, so that the plastic plate between the plastic suction mould and the material cutting device slightly arches upwards or downwards to cause the normal phenomenon, the position of the pressure plate pressing on the plastic plate deviates from the boundary between two adjacent products, and the edge of the cut product is inclined.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an accurate blank device of plastic uptake machine has improved the precision that cuts plastic board on the boundary line of two adjacent products.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme: an accurate cutting device of a plastic uptake machine comprises a support frame, wherein a guide rail, a lower material pressing plate, an upper material pressing plate and a material pressing cylinder are sequentially fixed on the support frame from bottom to top; when the upper pressure plate moves upwards to the top end of the stroke, the first roller shaft is in contact with the lower surface of the plastic plate in a straightening state; when the upper pressure plate moves downwards to be in contact with the lower pressure plate, the second roller shaft is in contact with the upper surface of the plastic plate in the straightening state.

Through adopting above-mentioned technical scheme, when pressing the material cylinder and will go up the pressure flitch and push down on pressing the flitch down, first support is followed and is pressed the flitch decline, so first roller and second roller also descend, if plastics panel is upwards protruding, then the second roller flattens plastics panel downwards, and the boundary line of two products on the plastics panel can be by last pressure flitch and lower pressure flitch clip accurately.

When the pressing cylinder drives the upper pressing plate to ascend, the first roller shaft and the second roller shaft also ascend, if the plastic plate is concave downwards, the first roller shaft presses the plastic plate upwards to be flat, and the boundary of two products on the plastic plate can be accurately clamped by the upper pressing plate and the lower pressing plate.

Preferably, the first support comprises a fixed plate and a movable plate, the fixed plate is fixed on the upper pressure plate, the first roller shaft is vertically arranged on the movable plate, and the movable plate is connected with the fixed plate through a bolt.

Through adopting above-mentioned technical scheme, can rotate the fly leaf through adjusting loose bolt to adjust the gradient of fly leaf.

Preferably, a first kidney-shaped hole is formed in the movable plate along the length direction of the movable plate, and the bolt penetrates through the first kidney-shaped hole.

Through adopting above-mentioned technical scheme, through adjusting the pine bolt, then change the position of bolt in first waist type is downthehole, can realize the altitude mixture control to the fly leaf.

Preferably, the device also comprises a second support fixed relative to the support frame, wherein a plurality of third roller shafts and a plurality of fourth roller shafts are arranged on the second support along the extension direction of the plastic plate, all the third roller shafts are mutually parallel and equidistantly arranged, the central axes are positioned on the same plane, all the fourth roller shafts are mutually parallel and equidistantly arranged, the central axes are positioned on the same plane, all the third roller shafts are in contact with the upper surface of the plastic plate, and all the fourth roller shafts are in contact with the lower surface of the plastic plate; the third roller shaft is positioned between the plastic suction mould and the second roller shaft, and the fourth roller shaft is positioned between the plastic suction mould and the first roller shaft.

Through adopting above-mentioned technical scheme, make plastics panel pass through earlier between one row of third roller and one row of fourth roller, utilize third roller and fourth roller to plastics panel's the effect of flattening, correct plastics panel's shape to the bending degree of the plastics panel between first roller and the second roller has been reduced.

Preferably, a pair of fifth roller shafts is arranged between the blade and the plastic suction mold, the fifth roller shafts are respectively and tightly attached to the upper pressure plate and the lower pressure plate, the planes tangent to the tops of all the fourth roller shafts are also tangent to the tops of the fifth roller shafts below, and the planes tangent to the bottoms of all the third roller shafts are also tangent to the bottoms of the fifth roller shafts above.

By adopting the technical scheme, the pair of fifth roll shafts plays a role in guiding the plastic plate, so that the plastic plate smoothly enters between the upper pressure plate and the lower pressure plate; in addition, the pair of fifth roller shafts also has the same functions as the third roller shaft and the fourth roller shaft: and flattening the plastic plate.

Preferably, a plane tangent to the tops of all the fourth roller shafts passes through a matching gap line of the upper pressure plate and the lower pressure plate.

By adopting the technical scheme, the plastic plate can pass through the space between the upper pressure plate and the lower pressure plate straightly and clings to the top of the lower pressure plate, so that the lower pressure plate is accurately pressed on the boundary line of two adjacent products of the plastic plate.

Preferably, the second support is provided with a plurality of vertical second waist-shaped holes, the end part of the third roller shaft and the end part of the fourth roller shaft extend into the second waist-shaped holes, the second support is screwed with screws, and the screws extend into the second waist-shaped holes along the length direction of the second waist-shaped holes to be connected with the end parts of the third roller shaft and the fourth roller shaft.

Through adopting above-mentioned technical scheme, but the adjustable screw stretches into the length in second waist type hole behind the rotatory screw to adjust the position and the interval of third roller and fourth roller.

Preferably, the screw penetrates through the end parts of the third roller shaft and the fourth roller shaft, two nuts are screwed on the screw, and the third roller shaft and the fourth roller shaft are both located between the two nuts.

Through adopting above-mentioned technical scheme, realized the screw and the dismantlement of third roller, fourth roller and be connected.

To sum up, the utility model discloses a beneficial technological effect does:

1. the first roller shaft and the second roller shaft which move along with the upper pressure plate are used for respectively flattening the convex plastic plate downwards and flattening the concave plastic plate upwards, so that the influence of the bent plastic plate on the cutting precision is reduced, and the precision of cutting the plastic plate on the boundary line of two adjacent products is improved;

2. the first roller shaft and the second roller shaft are designed to be height-adjustable, and can be matched with products with different thicknesses for use.

Drawings

FIG. 1 is a front view of a vacuum molding machine in an embodiment;

FIG. 2 is a left side view of the support bracket;

FIG. 3 is an enlarged view of portion A of FIG. 1;

fig. 4 is an enlarged view of a portion B in fig. 1.

In the figure, 1, a support frame; 2. a guide rail; 3. pressing a material plate; 4. feeding a pressure plate; 5. a material pressing cylinder; 6. a slider; 7. a blade; 8. a first bracket; 9. a first roller shaft; 10. a second roller shaft; 11. a fixing plate; 12. a movable plate; 13. a first kidney-shaped hole; 14. a second bracket; 15. a third roller shaft; 16. a fourth roller shaft; 17. a second kidney-shaped hole; 18. a screw; 19. a nut; 20. plastic plates; 21. a bolt; 22. a fifth roll shaft; 23. a material cutting cylinder; 24. a first straight rod; 25. a second straight rod; 26. a plastic sucking machine; 27. and (5) plastic suction molds.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example (b): fig. 1 is the utility model discloses an accurate blank device of plastic uptake machine, including support frame 1, be equipped with blank mechanism on the support frame 1, plastic uptake machine 26 heats softening back with plastic panel 20 and delivers to directly over plastic uptake mould 27, and plastic uptake mould 27 goes upward inhales into plastic panel 20 and appoints the shape, and then plastic uptake mould 27 goes down to break away from with plastic panel 20, and then plastic panel 20 continues to advance to get into in the blank mechanism, and blade 7 in the blank mechanism cuts plastic panel 20 into products one by one.

As shown in fig. 2, a guide rail 2, a lower material pressing plate 3, an upper material pressing plate 4 and a material pressing cylinder 5 are sequentially fixed on the support frame 1 from bottom to top, the upper material pressing plate 4 is fixed at the bottom end of a piston rod of the material pressing cylinder 5, and the guide rail 2 is perpendicular to the piston rod of the material pressing cylinder 5. The cutting mechanism comprises a slide block 6, a cutting cylinder 23 for driving the slide block 6 to reciprocate and a connecting rod mechanism besides the blade 7, the blade 7 is fixed on the slide block 6, the blade 7 is tightly attached to the side surface of the lower material pressing plate 3, the guide rail 2 penetrates through the slide block 6, and the slide block 6 can slide on the guide rail 2. The connecting rod mechanism is formed by hinging a first straight rod 24 and a second straight rod 25, wherein the first straight rod 24 is hinged with the support frame 1, the second straight rod 25 is hinged with the sliding block 6, the blanking cylinder 23 is fixed on the first straight rod 24, and a piston rod of the blanking cylinder 23 is hinged with the second straight rod 25.

As shown in fig. 2, the upper nip plate 4 is provided with a first support 8, the first support 8 is composed of a fixed plate 11 and a movable plate 12, the fixed plate 11 is fixed on the upper nip plate 4, and the movable plate 12 is vertically connected with a horizontal first roller shaft 9.

As shown in fig. 1, the movable plate 12 is provided with a first kidney-shaped hole 13 along the length direction thereof, a bolt 21 is inserted into the first kidney-shaped hole 13, a circular hole is formed in the fixed plate 11 for the bolt 21 to pass through, and the movable plate 12 is fixed on the fixed plate 11 by the bolt 21. The movable plate 12 can be rotated by loosening the bolt 21, so that the inclination of the movable plate 12 can be adjusted; the height of the movable plate 12 can be adjusted by loosening the bolt 21 and then changing the position of the bolt 21 in the first kidney-shaped hole 13.

As shown in fig. 1, two pairs of movable plates 12 are connected to the fixed plate 11 through bolts 21, wherein a first roller shaft 9 is vertically connected to one pair of movable plates 12, a second roller shaft 10 is vertically connected to the other movable plate 12, and both the first roller shaft 9 and the second roller shaft 10 are parallel to the guide rail 2. The first roller shaft 9 is located below the plastic plate 20, the second roller shaft 10 is located above the plastic plate 20, when the pressing cylinder 5 drives the upper pressing plate 4 to move upwards to the top end of the stroke, the first roller shaft 9 is in contact with the lower surface of the plastic plate 20 in the straightening state, and when the pressing cylinder 5 drives the upper pressing plate 4 to move downwards to be in contact with the lower pressing plate 3, the second roller shaft 10 is in contact with the upper surface of the plastic plate 20 in the straightening state.

As shown in fig. 1, a second frame 14 is fixed to the support frame 1 or the suction molding machine 26.

As shown in fig. 4, a plurality of vertical second kidney-shaped holes 17 are formed in the second bracket 14, a third roller 15 and a fourth roller 16 are connected to each second kidney-shaped hole 17, the third roller 15 contacts with the upper surface of the plastic plate 20 in the straightened state, and the fourth roller 16 contacts with the lower surface of the plastic plate 20 in the straightened state. All the third roll shafts 15 are parallel to each other and equidistantly arranged, and the central axes are located on the same plane, and similarly, all the fourth roll shafts 16 are parallel to each other and equidistantly arranged, and the central axes are located on the same plane. And a plane tangent to the tops of all the fourth roll shafts 16 passes through a matching gap between the upper pressure plate 4 and the lower pressure plate 3. All the third roll shafts 15 are positioned between the second roll shafts 10 and the blister molds 27, and all the fourth roll shafts 16 are positioned between the first roll shafts 9 and the blister molds 27.

As shown in fig. 4, the third roller shaft 15 and the fourth roller shaft 16 are both configured as a shaft-sleeved rotating roller, and the end of the shaft extends into the second kidney-shaped hole 17, so that the rotating roller can rotate relative to the shaft. The second bracket 14 is screwed with a screw 18, the screw 18 extends into the second kidney-shaped hole 17 along the length direction of the second kidney-shaped hole 17 to be connected with the end part of the third roller shaft 15/the fourth roller shaft 16, and the length of the screw 18 extending into the second kidney-shaped hole 17 can be adjusted after the screw 18 is rotated, so that the position and the distance between the third roller shaft 15 and the fourth roller shaft 16 can be adjusted. The connection of the screw 18 and the third roll shaft 15/the fourth roll shaft 16 is a detachable connection, and the specific connection mode is as follows: the shaft ends of the third roller shaft 15 and the fourth roller shaft 16 are both provided with holes for screws 18 to pass through, two nuts 19 are screwed on the screws 18, and the two nuts 19 are respectively positioned at two sides of the shaft of the third roller shaft 15/the fourth roller shaft 16 and clamp the shaft.

As shown in fig. 1, a pair of fifth roller shafts 22 is provided between the blade 7 and the blister mold 27, two fifth roller shafts 22 are respectively tightly attached to the upper pressure plate 4 and the lower pressure plate 3, a plane tangent to the tops of all the fourth roller shafts 16 is also tangent to the top of the fifth roller shaft 22 below, and a plane tangent to the bottoms of all the third roller shafts 15 is also tangent to the bottom of the fifth roller shaft 22 above (lowered to the limit position). The pair of fifth roll shafts 22 play a role in guiding the plastic sheet 20, so that the plastic sheet 20 smoothly enters between the upper material pressing plate 4 and the lower material pressing plate 3; the pair of fifth roller shafts 22 also have the same functions as the third roller shaft 15 and the fourth roller shaft 16: the plastic sheet 20 is flattened.

The implementation principle of the embodiment is as follows:

the plastic sheet 20 released from the plastic suction mold 27 firstly passes through the space between the row of the third roller shafts 15 and the row of the fourth roller shafts 16, and the shape of the plastic sheet 20 is corrected by the flattening effect of the third roller shafts 15 and the fourth roller shafts 16 on the plastic sheet 20, so that the bending degree of the plastic sheet 20 is reduced.

When the material pressing cylinder 5 presses the upper material pressing plate 4 downwards onto the lower material pressing plate 3, the first support 8 descends along with the upper material pressing plate 4, so that the first roller shaft 9 and the second roller shaft 10 also descend, if the plastic plate 20 is convex upwards, the second roller shaft 10 presses the plastic plate 20 downwards to be flat, and the boundary of two products on the plastic plate 20 can be accurately clamped by the upper material pressing plate 4 and the lower material pressing plate 3. When the pressing cylinder 5 drives the upper pressing plate 4 to ascend, the first roller shaft 9 and the second roller shaft 10 also ascend, if the plastic plate 20 is concave downwards, the first roller shaft 9 presses the plastic plate 20 upwards to be flat, and the boundary of two products on the plastic plate 20 can be accurately clamped by the upper pressing plate 4 and the lower pressing plate 3.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (8)

1. The utility model provides an accurate blank device of plastic uptake machine, including support frame (1), supreme guide rail (2) of being fixed with in proper order down is followed to support frame (1), down pressing flitch (3), go up pressing flitch (4), press material cylinder (5), it is fixed in the piston rod bottom of pressing material cylinder (5) to go up pressing flitch (4), guide rail (2) are perpendicular with the piston rod of pressing material cylinder (5), it is equipped with slider (6) to slide on guide rail (2), be fixed with on slider (6) blade (7), the side of pressing flitch (3) down is hugged closely in blade (7), its characterized in that: a first support (8) is arranged on the upper pressure plate (4), a first roller shaft (9) and a second roller shaft (10) which are parallel to the guide rail (2) are arranged on the first support (8), the first roller shaft (9) is positioned below the plastic plate (20), and the second roller shaft (10) is positioned above the plastic plate (20); when the upper pressure plate (4) moves upwards to the top end of the stroke, the first roller shaft (9) is in contact with the lower surface of the plastic plate (20) in a straightened state; when the upper pressure plate (4) moves downwards to be in contact with the lower pressure plate (3), the second roller shaft (10) is in contact with the upper surface of the plastic plate (20) in a straightened state.

2. The precise blanking device of the vacuum forming machine according to claim 1, characterized in that: the first support (8) comprises a fixed plate (11) and a movable plate (12), the fixed plate (11) is fixed on the upper pressing plate (4), the first roller shaft (9) is vertically arranged on the movable plate (12), and the movable plate (12) is connected with the fixed plate (11) through a bolt (21).

3. The precise blanking device of the vacuum forming machine according to claim 2, characterized in that: a first kidney-shaped hole (13) is formed in the movable plate (12) along the length direction of the movable plate, and a bolt (21) penetrates through the first kidney-shaped hole (13).

4. The precise blanking device of the vacuum forming machine according to claim 1, characterized in that: the supporting frame is characterized by further comprising a second support (14) fixed relative to the supporting frame (1), wherein a plurality of third roller shafts (15) and a plurality of fourth roller shafts (16) are arranged on the second support (14) along the extending direction of the plastic plate (20), all the third roller shafts (15) are parallel to each other and are arranged at equal intervals, the central axes of the third roller shafts are located on the same plane, all the fourth roller shafts (16) are parallel to each other and are arranged at equal intervals, the central axes of the fourth roller shafts are located on the same plane, all the third roller shafts (15) are in contact with the upper surface of the plastic plate (20), and all the fourth roller shafts (16) are in contact with the lower surface of the plastic; the third roller shaft (15) is positioned between the plastic suction mould (27) and the second roller shaft (10), and the fourth roller shaft (16) is positioned between the plastic suction mould (27) and the first roller shaft (9).

5. The precise blanking device of the vacuum forming machine according to claim 4, characterized in that: a pair of fifth roller shafts (22) is arranged between the blade (7) and the plastic suction mould (27), the pair of fifth roller shafts (22) are respectively tightly attached to the upper pressure plate (4) and the lower pressure plate (3), the planes tangent to the tops of all the fourth roller shafts (16) are also tangent to the tops of the fifth roller shafts (22) below, and the planes tangent to the bottoms of all the third roller shafts (15) are also tangent to the bottoms of the fifth roller shafts (22) above.

6. The precise blanking device of the vacuum forming machine according to claim 4, characterized in that: and a plane tangent to the tops of all the fourth roll shafts (16) passes through a matching gap line of the upper pressure plate (4) and the lower pressure plate (3).

7. The precise blanking device of the vacuum forming machine according to claim 4, characterized in that: be equipped with a plurality of vertical second waist type holes (17) on second support (14), the tip of third roller (15) and the tip of fourth roller (16) all stretch into in second waist type hole (17), spiro union has screw (18) on second support (14), and screw (18) stretch into in second waist type hole (17) along the length direction in second waist type hole (17) with the end connection of third roller (15), fourth roller (16).

8. The precise blanking device of the vacuum forming machine according to claim 7, characterized in that: the screw (18) runs through the end parts of the third roll shaft (15) and the fourth roll shaft (16), the screw (18) is connected with two nuts (19) in a threaded mode, and the third roll shaft (15) and the fourth roll shaft (16) are located between the two nuts (19).

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